summaryrefslogtreecommitdiff
path: root/spec/functional/shell_spec.rb
blob: a753948c7fb4e0b019e3caf05ecbf3525fc67bf0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
#
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2012 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require 'functional/resource/base'
require 'chef/version'
require 'chef/shell'
require 'chef/mixin/command/unix'

describe Shell do

  # chef-shell's unit tests are by necessity very mock-heavy, and frequently do
  # not catch cases where chef-shell fails to boot because of changes in
  # chef/client.rb
  describe "smoke tests", :unix_only => true do
    include Chef::Mixin::Command::Unix

    TIMEOUT=300

    def read_until(io, expected_value)
      start = Time.new
      buffer = ""
      until buffer.include?(expected_value)
        begin
          buffer << io.read_nonblock(1)
        rescue Errno::EWOULDBLOCK, Errno::EAGAIN, Errno::EIO, EOFError
          sleep 0.01
        end
        if Time.new - start > TIMEOUT
          raise "did not read expected value `#{expected_value}' within #{TIMEOUT}s\n" +
                "Buffer so far: `#{buffer}'"
        end
      end
      buffer
    end

    def flush_output(io)
      start = Time.new
      loop do
        begin
          io.read_nonblock(1)
        rescue Errno::EWOULDBLOCK, Errno::EAGAIN
          sleep 0.01
        rescue EOFError, Errno::EIO
          break
        end
        if Time.new - start > TIMEOUT
          raise "timed out after #{TIMEOUT}s waiting for output to end"
        end
      end
    end

    def wait_or_die(pid)
      start = Time.new

      until exitstatus = Process.waitpid2(pid, Process::WNOHANG)
        if Time.new - start > 5
          STDERR.puts("chef-shell tty did not exit cleanly, killing it")
          Process.kill(:KILL, pid)
        end
        sleep 0.01
      end
      exitstatus[1]
    end

    def run_chef_shell_with(options)
      case ohai[:platform]
      when "aix"
        config = File.expand_path("shef-config.rb", CHEF_SPEC_DATA)
        path_to_chef_shell = File.expand_path("../../../bin/chef-shell", __FILE__)
        output = ''
        status = popen4("#{path_to_chef_shell} -c #{config} #{options}", :waitlast => true) do |pid, stdin, stdout, stderr|
          read_until(stdout, "chef (#{Chef::VERSION})>")
          yield stdout, stdin if block_given?
          stdin.write("'done'\n")
          output = read_until(stdout, '=> "done"')
          stdin.print("exit\n")
          flush_output(stdout)
        end

        [output, status.exitstatus]
      else
        # Windows ruby installs don't (always?) have PTY,
        # so hide the require here
        begin
          require 'pty'
          config = File.expand_path("shef-config.rb", CHEF_SPEC_DATA)
          path_to_chef_shell = File.expand_path("../../../bin/chef-shell", __FILE__)
          reader, writer, pid = PTY.spawn("#{path_to_chef_shell} -c #{config} #{options}")
          read_until(reader, "chef (#{Chef::VERSION})>")
          yield reader, writer if block_given?
          writer.puts('"done"')
          output = read_until(reader, '=> "done"')
          writer.print("exit\n")
          flush_output(reader)
          writer.close

          exitstatus = wait_or_die(pid)

          [output, exitstatus]
        rescue PTY::ChildExited => e
          [output, e.status]
        end
      end
    end

    it "boots correctly with -lauto" do
      output, exitstatus = run_chef_shell_with("-lauto")
      expect(output).to include("done")
      expect(exitstatus).to eq(0)
    end

    it "sets the log_level from the command line" do
      output, exitstatus = run_chef_shell_with("-lfatal") do |out, keyboard|
        show_log_level_code = %q[puts "===#{Chef::Log.level}==="]
        keyboard.puts(show_log_level_code)
        read_until(out, show_log_level_code)
      end
      expect(output).to include("===fatal===")
      expect(exitstatus).to eq(0)
    end

    it "sets the override_runlist from the command line" do
      output, exitstatus = run_chef_shell_with("-o 'override::foo,override::bar'") do |out, keyboard|
        show_recipes_code = %q[puts "#{node.recipes.inspect}"]
        keyboard.puts(show_recipes_code)
        read_until(out, show_recipes_code)
      end
      expect(output).to include(%q{["override::foo", "override::bar"]})
      expect(exitstatus).to eq(0)
    end
  end
end